using microsoft office from central server

I have some sometime users of microsoft office, so obviously don't want to buy a full blown office pro for each computer.
what kinds of options do I have for using a central server to distribute office as needed.
I know I can use a remote desktop which requires a license and a licensed copy of office for each remote desktop that is connected.

Is there any other ways of accomplishing the same thing without a remote desktop?

The System Center Operations Manager 2012, known as SCOM, is a part of the Microsoft system center product that provides the user with infrastructure monitoring and application performance monitoring.
SCOM monitors:
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